EP0518523B1 - Plastics packaged optical fibre - Google Patents
Plastics packaged optical fibre Download PDFInfo
- Publication number
- EP0518523B1 EP0518523B1 EP92304823A EP92304823A EP0518523B1 EP 0518523 B1 EP0518523 B1 EP 0518523B1 EP 92304823 A EP92304823 A EP 92304823A EP 92304823 A EP92304823 A EP 92304823A EP 0518523 B1 EP0518523 B1 EP 0518523B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plastics
- layer
- coating
- optical fibre
- fibre
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/104—Coating to obtain optical fibres
- C03C25/1065—Multiple coatings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
Abstract
Description
- This invention relates to plastics packaged glass optical fibres. Glass optical fibres, typically those made of fused silica, are normally provided with a plastics protective coating immediately after they are drawn from preform. A primary function of such a coating is to preserve, so far as is practically possible, the initial strength of the freshly drawn fibre by protecting its surface from chemical attack and from mechanical damage resulting from it being allowed to contact any solid surface other than that of the coating itself. Typically the application of the initial plastics protective coating is followed by the application of one or more further coatings of plastics material to produce a complete plastics packaged optical fibre. Not all of these further coatings are necessarily applied on-line with the drawing of fibre from preform. The thicknesses, moduli and expansion coefficients of the individual layers comprising the complete plastics packaging are normally chosen to provide mechanical buffering from the fibre and protection against micro-bending. A typical three-layer structure comprises an acrylate inner layer, a nylon outer layer and, between two layers, an intermediate layer of lower modulus material. Although described as a three-layer package, the acrylate layer may be a composite layer built up from two or more component sub-layers applied in succession, those sub-layers being of slightly different acrylate composition, and hence of slightly different modulus.
- Electronics and Communications in Japan, Vol. 66, No. 6, (1983), pages 45-51 discloses a plastics packaged glass optical fibre having an outer layer of plastics packaging spaced from an inner layer of plastics packaging by an intermediate layer. In the disclosed coated optical fibre the inner layer comprises polyurethane and it is stated that since polyurethane is a hard material it is easy to strip the intermediate layer (which is a silicone layer) and the outer layer (which is a nylon layer) mechanically without damaging the fibre.
- The present invention is concerned with plastics packaged glass optical fibre having an outer layer of plastics packaging spaced from an inner layer of plastics packaging by an intermediate layer of plastics packaging, and provides a structure having the property that the intermediate layer is not strongly adherent to the inner layer, thus facilitating the removal of the outer layer from the inner by mechanical stripping so as to leave the inner layer intact on the underlying glass optical fibre. Mechanical strippability of this sort is a desirable feature in many applications in order to facilitate the preparation of fibre splices and terminations.
- According to the present invention there is provided a plastics packaged glass optical fibre having an outer layer of plastics packaging spaced from an inner layer of plastics packaging by an intermediate plastics layer, characterised in that said intermediate layer comprises an unsintered dispersion deposited layer of plastics material.
- The invention also provides a method of providing an optical fibre with plastics packaging, in which method the fibre is provided with a plastics coating upon which another plastics coating is applied and a further coating is applied over said other coating, characterised in that said other coating is applied from an aqueous dispersion, the dispersion is dried without producing a sintering of the residual material of the coating, and said further coating is applied over the dried coating leaving the dried coating in its unsintered state.
- Patent Abstracts of Japan, Vol. 10, No. 52, (P-432), [2109] February 28 (which provides an abstract of JP-A-60 195 507) located in the EPO search discloses the use of a fluoroplastic which is applied from a dispersion solution, as a primary coating of a fibre for preventing hydrogen generated on the outside of the primary coating from arriving at the core of the fibre.
- There follows, by way of example, a description of the manufacture of a plastics packaged glass optical fibre embodying the invention in a preferred form. The description refers to the accompanying drawings in which:-
- Figure 1 is a schematic representation of a cross-section of the packaged fibre, and
- Figure 2 is a schematic representation of the apparatus employed in the provision of the intermediate and outer plastics packaging layers of the fibre of Figure 1.
- Referring to Figure 1, a fused silica optical fibre consists of an
optical core region 10 surrounded by a lower refractive indexoptical cladding region 11. This fibre, which typically has a diameter of 125 µm, is drawn from larger diameter optical fibre preform (not shown). Immediately after being drawn from the tip of the preform, and without first allowing it to come into any contact with a solid surface, the freshly drawn fibre is passed through one or more acrylate resin filled coating baths (not shown), and the applied resin is cured prior to collection of the fibre, for instance on a drum (not shown). The optical fibre, complete with itsacrylate coating 12, now typically has a diameter of 250 µm. - The
optical fibre inner coating 12, is subsequently provided with anintermediate coating 13, and anouter coating 14, using the apparatus of Figure 2. In Figure 2, the fibre, complete with its acrylate coating, is depicted at 20 where it is about to be introduced into anapplicator 21 via anentrance die 22. The applicator contains an aqueous dispersion of polytetrafluoroethylene (PTFE) at a pressure provided by a head of the dispersion contained in areservoir 23. The fibre leaves theapplicator 21 by way of anexit die 24, now coated with a thin layer of the aqueous dispersion of PTFE. - In a particular example the aqueous dispersion contained 55% PTFE with an 0.3 µm average particle size, and included a wetting agent to reduce surface tension and hence reduce any tendency for the coating to bead. The viscosity of this dispersion was 15 mPa.s. The head provided by the reservoir was about 10 cm. The two dies 22 and 24 had orifices 300 µm in diameter. The line speed was 40 metres per minute, and the thickness of the resulting wet dispersion coating was about 20 µm. At high line speeds the dispersion is liable to experience significant shear forces in the neighbourhood of the exit die orifice, and hence it is desirable to use a highly polished die made of a suitable material, such as tungsten carbide, that will minimise the risk of producing shear-induced coagulation of the dispersion.
- The PTFE dispersion coated fibre proceeds a short distance, typically about 0.5 metres, after leaving the exit die before entering a
drying oven 25. Typically this drying oven is about 1.5 metres long. Inside the oven, a current of hot air provides a temperature gradient designed to promote gradual evaporation of the aqueous medium to leave a low modulus particulate film 13 (Figure 1) of PFTE about 10 µm thick that will provide a cushion between theinner coating 12 and a yet-to-be-applied outer coating 14 (Figure 1). The hot air flow is deliberately designed not to allow the temperature of the coating to reach 380°C and thus allow the PTFE to begin to sinter. This is because such sintering would produce higher modulus material liable to be much more strongly adherent to theunderlying coating 12. Furthermore, much more PTFE would be required to produce a fully coherent sintered layer. - After leaving the
drying oven 25, the fibre now complete with its inner andintermediate plastics coatings 12 and 13 (Figure 1), proceeds a further short distance, typically about 1.5 metres, before entering a melt-extruder 26 containing nylon for theouter coating 14 of the plastics packaging. On emerging from the melt-extruder, the fibre, now complete with its inner intermediate and outerplastics packaging layers cooling trough 27 before being taken up on a drum (not shown). The cooling provided by thecooling trough 27 is regulated to produce the required amount of crystallinity in the nylon and hence the appropriate thermal expansion properties to give the packaged fibre its required strength without inducing excessive micro-bending losses over the required service temperature range. - The resulting optical fibre package is a tight jacketed fibre whose outer layer is readily strippable by mechanical means.
- In a preferred construction the
inner acrylate coating 12 has a composite structure with an outer sub-layer surrounding an inner sub-layer of lower modulus than the outer sub-layer, the boundary between these two layers being indicated in Figure 1 by thebroken line 15.
It is to be clearly understood that the invention is not limited in its application solely to the specific plastics materials exemplified in the foregoing specific example. Thus an aqueous dispersion of FEP (fluorinated ethylene propylene) can be used in place of the aqueous dispersion of PTFE as the material from which to make the intermediate coating, and similarly an alternative high performance thermoplastics material, such as a polyester polyether or a liquid crystal polymer, can be used in place of the nylon of the outer coating.
Claims (11)
- A plastics packaged glass optical fibre having an outer layer (14) of plastics packaging spaced from an inner layer (12) of plastics packaging by an intermediate plastics layer (13), characterised in that said intermediate layer comprises an unsintered dispersion deposited layer of plastics material.
- A plastics packaged optical fibre as claimed in claim 1, wherein the plastics material of said intermediate layer (13) is a fluoropolymer.
- A plastics packaged optical fibre as claimed in claim 2, wherein said fluoropolymer is polytetrafluoroethylene.
- A plastics packaged optical fibre as claimed in claim 2, wherein said fluoropolymer is fluorinated ethylene propylene.
- A plastics packaged optical fibre as claimed in any preceding claim, wherein the plastics material of said outer layer (14) is nylon.
- A plastics packaged optical fibre as claimed in any preceding claim, wherein said inner plastics layer (12) is an acrylate layer.
- A plastics packaged optical fibre as claimed in claim 6 wherein said inner acrylate plastics layer (12) is a composite layer having sub-layers of different modulus.
- A method of providing an optical fibre with plastics packaging, in which method the fibre is provided with a plastics coating (12) upon which another plastics coating (13) is applied and a further coating (14) is applied over said other coating, characterised in that said other coating is applied from an aqueous dispersion, the dispersion is dried without producing a sintering of the residual material of the coating, and said further coating is applied over the dried coating leaving the dried coating in its unsintered state.
- A method as claimed in claim 8, wherein the aqueous dispersion is an aqueous fluoropolymer dispersion.
- A method as claimed in claim 9, wherein said fluoropolymer is polytetrafluoroethylene.
- A method as claimed in claim 9, wherein said fluoropolymer is fluorinated ethylene propylene.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9112636A GB2256604B (en) | 1991-06-12 | 1991-06-12 | Plastics packaged optical fibre |
GB9112636 | 1991-06-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0518523A1 EP0518523A1 (en) | 1992-12-16 |
EP0518523B1 true EP0518523B1 (en) | 1994-12-28 |
Family
ID=10696533
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92304823A Expired - Lifetime EP0518523B1 (en) | 1991-06-12 | 1992-05-28 | Plastics packaged optical fibre |
Country Status (15)
Country | Link |
---|---|
US (1) | US5444808A (en) |
EP (1) | EP0518523B1 (en) |
JP (1) | JP3207924B2 (en) |
CN (1) | CN1032090C (en) |
AT (1) | ATE116273T1 (en) |
AU (1) | AU652452B2 (en) |
CA (1) | CA2071063C (en) |
DE (1) | DE69201015T2 (en) |
DK (1) | DK0518523T3 (en) |
ES (1) | ES2068676T3 (en) |
FI (1) | FI109619B (en) |
GB (1) | GB2256604B (en) |
NO (1) | NO312190B1 (en) |
NZ (1) | NZ242992A (en) |
ZA (1) | ZA924022B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20230185043A1 (en) * | 2021-12-10 | 2023-06-15 | Sterlite Technologies Limited | Unbonded armored optical fibre cable |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5381504A (en) * | 1993-11-15 | 1995-01-10 | Minnesota Mining And Manufacturing Company | Optical fiber element having a permanent protective coating with a Shore D hardness value of 65 or more |
US5408564A (en) * | 1994-06-27 | 1995-04-18 | Siecor Corporation | Strippable tight buffered optical waveguide |
JP3462634B2 (en) * | 1995-06-28 | 2003-11-05 | 住友電気工業株式会社 | Optical fiber core and method of removing coating |
US5908873A (en) | 1995-12-20 | 1999-06-01 | Borden Chemicals, Inc. | Peelable bonded ribbon matrix material; optical fiber bonded ribbon arrays containing same; and process for preparing said optical fiber bonded ribbon arrays |
US5633960A (en) * | 1996-01-24 | 1997-05-27 | The United States Of America As Represented By The Secretary Of The Navy | Spatially averaging fiber optic accelerometer sensors |
US5684910A (en) * | 1996-06-24 | 1997-11-04 | Lucent Technologies Inc. | Buffered optical fiber having a strippable buffer layer |
US5838862A (en) * | 1996-10-24 | 1998-11-17 | Corning Incorporated | Strippable tight buffered optical waveguide fiber |
US5850497A (en) * | 1997-04-15 | 1998-12-15 | Lucent Technologies Inc. | Method for stretching refractory bodies |
US6767579B1 (en) * | 1998-11-24 | 2004-07-27 | Corning Incorporated | Methods for protecting silica-containing article in optical fiber manufacturing |
AU1477200A (en) * | 1998-11-24 | 2000-06-13 | Corning Incorporated | Method of applying protective coating to silica-containing article |
US6289158B1 (en) * | 1999-11-18 | 2001-09-11 | Lucent Technologies Inc. | Coated optical fiber with enhanced delamination resistance and thermally enhanced strippability |
KR100318927B1 (en) * | 2000-01-06 | 2001-12-29 | 윤종용 | Optical fiber coating device comprising a chiller |
JP2001235662A (en) * | 2000-02-23 | 2001-08-31 | Yazaki Corp | Plastic optical fiber cable and method for manufacturing plastic optical fiber cable |
TW536640B (en) * | 2001-04-13 | 2003-06-11 | Furukawa Electric Co Ltd | Coated optical fiber |
US7295737B2 (en) * | 2005-08-04 | 2007-11-13 | Corning Cable Systems Llc | Mechanically strippable upcoated optical fiber |
US8292805B2 (en) * | 2009-11-10 | 2012-10-23 | Invuity, Inc. | Illuminated suction apparatus |
CN103293621B (en) * | 2013-06-25 | 2015-11-18 | 南京华信藤仓光通信有限公司 | A kind of tight tube fiber and preparation method thereof |
CN113232386B (en) * | 2015-11-05 | 2023-06-09 | 康宁股份有限公司 | Laminated glass article with defined modulus contrast and method of forming the same |
CN107037334A (en) * | 2017-04-08 | 2017-08-11 | 国网河南省电力公司安阳供电公司 | High-voltage transmission line insulator all -fiber monitoring network |
CN107015126A (en) * | 2017-04-08 | 2017-08-04 | 国网河南省电力公司安阳供电公司 | Insulator pollution monitoring method based on optical fiber |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4072400A (en) * | 1975-07-07 | 1978-02-07 | Corning Glass Works | Buffered optical waveguide fiber |
US4243298A (en) * | 1978-10-06 | 1981-01-06 | International Telephone And Telegraph Corporation | High-strength optical preforms and fibers with thin, high-compression outer layers |
JPS5598706A (en) * | 1979-01-23 | 1980-07-28 | Nippon Telegr & Teleph Corp <Ntt> | Glass fiber for optical transmission and its production |
DE3020622C2 (en) * | 1980-05-30 | 1985-05-15 | W.L. Gore & Associates, Inc., Newark, Del. | Ribbon cable and process for its manufacture |
JPS6086515A (en) * | 1983-10-18 | 1985-05-16 | Junkosha Co Ltd | Light transmitting linear body and flat cable using it |
GB8330851D0 (en) * | 1983-11-18 | 1983-12-29 | Fisons Plc | Device |
ATE56826T1 (en) * | 1985-07-05 | 1990-10-15 | Siemens Ag | FILLING COMPOUND FOR FIBER OPTIC WIRE AND/OR FIBER OPTIC CABLE. |
US4854668A (en) * | 1987-04-14 | 1989-08-08 | Siemens Aktiengesellschaft | Light waveguide having three protective layers of plastic material and a method of manufacture |
DE3911745A1 (en) * | 1989-04-11 | 1990-10-25 | Philips Patentverwaltung | METHOD FOR PRODUCING GLASS BODIES WITH AREAS OF DIFFERENT OPTICAL BREAKAGE |
CA1321671C (en) * | 1989-05-11 | 1993-08-24 | Paul J. Shustack | Ultraviolet radiation-curable coatings for optical fibers and optical fibers coated therewith |
US5011260A (en) * | 1989-07-26 | 1991-04-30 | At&T Bell Laboratories | Buffered optical fiber having a strippable buffer layer |
US5062685A (en) * | 1989-10-11 | 1991-11-05 | Corning Incorporated | Coated optical fibers and cables and method |
US5181268A (en) * | 1991-08-12 | 1993-01-19 | Corning Incorporated | Strippable tight buffered optical waveguide fiber |
US5170459A (en) * | 1991-08-30 | 1992-12-08 | Hughes Aircraft Company | Optical fiber attachment structure and method |
-
1991
- 1991-06-12 GB GB9112636A patent/GB2256604B/en not_active Expired - Fee Related
-
1992
- 1992-05-28 ES ES92304823T patent/ES2068676T3/en not_active Expired - Lifetime
- 1992-05-28 DE DE69201015T patent/DE69201015T2/en not_active Expired - Lifetime
- 1992-05-28 AT AT92304823T patent/ATE116273T1/en active
- 1992-05-28 EP EP92304823A patent/EP0518523B1/en not_active Expired - Lifetime
- 1992-05-28 DK DK92304823.5T patent/DK0518523T3/en active
- 1992-06-02 NZ NZ242992A patent/NZ242992A/en not_active IP Right Cessation
- 1992-06-02 ZA ZA924022A patent/ZA924022B/en unknown
- 1992-06-09 FI FI922669A patent/FI109619B/en not_active IP Right Cessation
- 1992-06-11 AU AU18184/92A patent/AU652452B2/en not_active Expired
- 1992-06-11 NO NO19922288A patent/NO312190B1/en not_active IP Right Cessation
- 1992-06-11 CA CA002071063A patent/CA2071063C/en not_active Expired - Lifetime
- 1992-06-12 JP JP15378092A patent/JP3207924B2/en not_active Expired - Lifetime
- 1992-06-12 CN CN92104574A patent/CN1032090C/en not_active Expired - Lifetime
-
1994
- 1994-06-03 US US08/254,655 patent/US5444808A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20230185043A1 (en) * | 2021-12-10 | 2023-06-15 | Sterlite Technologies Limited | Unbonded armored optical fibre cable |
Also Published As
Publication number | Publication date |
---|---|
EP0518523A1 (en) | 1992-12-16 |
FI109619B (en) | 2002-09-13 |
AU1818492A (en) | 1992-12-17 |
DK0518523T3 (en) | 1995-03-20 |
GB2256604A (en) | 1992-12-16 |
ATE116273T1 (en) | 1995-01-15 |
DE69201015D1 (en) | 1995-02-09 |
FI922669A0 (en) | 1992-06-09 |
ZA924022B (en) | 1993-02-24 |
CN1032090C (en) | 1996-06-19 |
AU652452B2 (en) | 1994-08-25 |
CA2071063A1 (en) | 1992-12-13 |
CA2071063C (en) | 2001-10-30 |
CN1070739A (en) | 1993-04-07 |
NZ242992A (en) | 1993-06-25 |
NO312190B1 (en) | 2002-04-08 |
US5444808A (en) | 1995-08-22 |
ES2068676T3 (en) | 1995-04-16 |
NO922288D0 (en) | 1992-06-11 |
FI922669A (en) | 1992-12-13 |
GB9112636D0 (en) | 1991-07-31 |
NO922288L (en) | 1992-12-14 |
GB2256604B (en) | 1995-04-19 |
JP3207924B2 (en) | 2001-09-10 |
DE69201015T2 (en) | 1995-08-10 |
JPH05203848A (en) | 1993-08-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0518523B1 (en) | Plastics packaged optical fibre | |
US5408564A (en) | Strippable tight buffered optical waveguide | |
US5181268A (en) | Strippable tight buffered optical waveguide fiber | |
US4848869A (en) | Method of coating and optical fiber comprising polyimide-silicone block copolymer coating | |
US5062685A (en) | Coated optical fibers and cables and method | |
CA1093357A (en) | Optical waveguide with protective compression coating of metallic glass | |
US4492428A (en) | Coated optical fiber | |
US4432607A (en) | Hot melt coated optical fiber | |
CA1201335A (en) | Metal coating of fibers | |
US5917978A (en) | Buffered optical fiber having improved low temperature performance and stripability | |
EP0484687A2 (en) | Reinforced protective tube for optical waveguide fibers | |
US4835057A (en) | Glass fibers having organosilsesquioxane coatings and claddings | |
WO1994002871A1 (en) | Crush-resistant high-strength buffered optical waveguide fiber cable | |
NL8502402A (en) | OPTICAL FIBER PROVIDED WITH A PLASTIC COATING, AND METHOD AND APPARATUS FOR MANUFACTURING SUCH OPTICAL FIBER. | |
US20030235382A1 (en) | Buffered optical fibers and methods of making same | |
US20040120666A1 (en) | Optical fiber ribbon having a semi-solid film on the outer surface thereof | |
JP2975606B2 (en) | Glass optical fiber and method for manufacturing the same | |
KR100281225B1 (en) | Plastic packaged optical fiber and manufacturing method thereof | |
EP1072910A1 (en) | Means for mode mixing in buffered optical fiber and method for making | |
GB2214652A (en) | Ruggedised optical fibres having high temperature resistant coating | |
US6600863B2 (en) | Method for fabricating alloy-coated optical fiber | |
Wagatsuma et al. | Slip mechanism in optical fiber coating with open-cup applicators | |
Miller | An overview of optical waveguide coatings | |
EP0488189A1 (en) | Plastic-clad silica (PCS) fibers and methods and apparatuses for producing the same | |
Lawson | Contributions And Effects Of Coatings On Optical Fibers |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT CH DE DK ES FR IT LI NL SE |
|
17P | Request for examination filed |
Effective date: 19930330 |
|
17Q | First examination report despatched |
Effective date: 19930609 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: PIRELLI GENERAL PLC |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT CH DE DK ES FR IT LI NL SE |
|
REF | Corresponds to: |
Ref document number: 116273 Country of ref document: AT Date of ref document: 19950115 Kind code of ref document: T |
|
REF | Corresponds to: |
Ref document number: 69201015 Country of ref document: DE Date of ref document: 19950209 |
|
ITF | It: translation for a ep patent filed |
Owner name: INDUSTRIE PIRELLI S.P.A. DIR. BREV. |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: T3 |
|
ET | Fr: translation filed | ||
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2068676 Country of ref document: ES Kind code of ref document: T3 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
NLS | Nl: assignments of ep-patents |
Owner name: PRYSMIAN CABLES & SYSTEMS LIMITED Effective date: 20090714 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: PC2A Owner name: "PRYSMIAN CABLES & Effective date: 20110420 Ref country code: ES Ref legal event code: PC2A Owner name: PRYSMIAN CABLES & SYSTEMS LIMITED Effective date: 20110420 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20110512 Year of fee payment: 20 Ref country code: SE Payment date: 20110512 Year of fee payment: 20 Ref country code: ES Payment date: 20110526 Year of fee payment: 20 Ref country code: FR Payment date: 20110607 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DK Payment date: 20110512 Year of fee payment: 20 Ref country code: AT Payment date: 20110427 Year of fee payment: 20 Ref country code: NL Payment date: 20110526 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20110525 Year of fee payment: 20 Ref country code: IT Payment date: 20110525 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 69201015 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: V4 Effective date: 20120528 Ref country code: DE Ref legal event code: R071 Ref document number: 69201015 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: EUP |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: EUG |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20120530 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK07 Ref document number: 116273 Country of ref document: AT Kind code of ref document: T Effective date: 20120528 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20140827 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20120529 |